docs: record Q204 system-manager decisions and tunable caps

BUILD-LOG.md

@@ -5183,3 +5183,5 @@ Before: managed project/thread verbs had no Console conversation area. After: fi
 2026-10-21T18:45:47Z | Huey | Q198 system-manager design r2, mos-1194, Vikunja 452 | Before: Scrooge requested changes on add7cb506 for decision-key worker exposure, cap scope and absent sampler ownership. After: distinct MOSAIC_DECISION_OPENROUTER_KEY with S6 sessionEnv canary requirement; exclusive per-instance key with per-key caps and provider limit on every enablement; S2 owns supervisor sampler and waits until after MVP/re-pin. Also records P1 interpretation, missing-confidence fallback and stand-in timeout selection, explains verified Noul spelling, excludes notifier/gateway retry loops with citations, and cites lifecycle revocation requirement. Verification: 30 pinned citation spans resolve, ten-line summary, manual diff/source review and whitespace/queue-guard checks. No builds, suites, live changes, credential reads or paid calls.
 
 2026-10-21T19:56:11Z | Huey | Q198 design r3, mos-1201/1201a, Vikunja 452 | Before: Scrooge approved r2 7e785a08f with three notes. After: N1 names proposed system.health bus read verb and includes broker handler/authorization in S2 scope and review; N2 labels exclusive ownership as a setup attestation that cannot be mechanically proved and identifies provider key limit as real ceiling; N3 adds recommended Q4 for P1 narrowing and removes the Mos-flag instruction. Other design content retained. Verification: manual r2-to-r3 delta review, ten-line summary, whitespace and installed queue-guard checks. No builds, suites, live changes or paid calls.
+
+2026-10-21T20:19:53Z | Huey | Q198 design r4, mos-1203, DECISIONS Q204, Vikunja 452 | Before: r3 a36952564 presented Q1–Q4 for owner approval. After: section 9 records Q20a–Q20c verbatim as approved; D11 labels Huey’s reading of configurable daily/monthly caps with $0.10/$1 defaults in the one instance config via reviewed schema; provider key ceiling and explicit enable/key requirements retained; Q4 pending, Jason restated 2026-10-21, P1 unchanged. Verification: quotes match DECISIONS ledger, unrelated sections and P1 equal r3, ten-line summary, whitespace and installed queue guard checked. No builds, suites, live changes or paid calls.

docs/SESSIONS.md

@@ -1422,3 +1422,4 @@ are never rewritten or removed; corrections are new entries.
 2026-10-21T16:34:44Z | Huey (gpt-6.1-sol) | mos-1183, Q198/Q199 system-manager design, Vikunja 452, huey/system-manager-design on 6c75887b0 | design and six proposed slices documented; pinned citations and docs checks pass; no build, suite, live action or paid call; Gitea/queue capture remains Sage-owned
 2026-10-21T18:45:47Z | Huey (gpt-6.1-sol) | mos-1194, Q198 design r2, scrooge-0001 findings 1–8, Vikunja 452 | all findings addressed in design and slice acceptance criteria; 30 citation references checked, no suites/live changes/paid calls; Mos routes r2 back to Scrooge
 2026-10-21T19:56:11Z | Huey (gpt-6.1-sol) | mos-1201/1201a, Q198 design r3, scrooge-0002 N1–N3 | three doc notes applied; Q4 ready for Mos’s combined owner approval question; no builds, suites, live changes or paid calls
+2026-10-21T20:19:53Z | Huey (gpt-6.1-sol) | mos-1203, Q198 design r4, DECISIONS Q204 | Q1–Q3 approved quotes recorded, cap settings interpretation labelled, Q4 pending and P1 unchanged; doc-only checks, no builds/live changes/paid calls

docs/plans/2026-10-21_q198-system-manager.md

@@ -12,8 +12,8 @@ No live trial, key installation or runtime change is authorized by this design.
 MVP work (Vikunja 414 and 416) keeps first claim on Sage’s gate.
 
 Brief: mos-1183, DECISIONS Q198/Q199, Vikunja **452**. Owner: Huey. Design only.
-Revision **r3**, mos-1201, applies Scrooge’s three notes on approved r2 `7e785a08f`
+Revision **r4**, mos-1203, records Jason’s DECISIONS Q204 answers to section 9
-(scrooge-0002).
+on r3 `a36952564`. Q4 remains pending.
 All defaults below are proposals, not measured safe operating limits or new authority.
 
 ## 1. Existing pieces and reuse
@@ -282,8 +282,11 @@ routing, but still account for their charge. The hook cannot authorize work, cho
 P0/P1 status, change thresholds, clear a kill, replay effects, or choose outside the
 eligible set. Recheck eligibility after it returns. Never call it for safety actions.
 
-**D11 Cost scope.** Proposed opt-in defaults: **$0.10/day and $1/month per dedicated
+**D11 Cost scope.** Huey’s reading of DECISIONS Q204 Q20b: daily and monthly USD caps
-decision key**, both enforced by its owning instance’s durable ledger. Each instance
+are user settings, with defaults of **$0.10/day and $1/month per dedicated decision key**.
+They live in the instance’s one system config through D3’s reviewed schema/bootstrap
+path. Both configured caps are enforced by the owning instance’s durable ledger.
+No spending starts until Jason enables paid decisions and installs the key. Each instance
 must use a separately provisioned key used only for that instance’s decisions, with a
 non-secret provider key ID bound to the instance in the approved setup record. Exclusive
 ownership is a setup attestation, not something the manager can prove mechanically.
@@ -351,17 +354,27 @@ bounded synthetic pressure. No load experiment on the shared development host.
 - **Q1 Initial authority:** should the manager ever force-stop background work just
   for load? **Recommend no.** Cooperative yield for load, hard stop only through an
   already-authorized safety/explicit stop. Broader authority needs a separate decision.
+  **Approved**, DECISIONS Q204. Jason, verbatim: “Q20a: no”
 - **Q2 Trial spend:** accept $0.10/day and $1/month per exclusive instance key, with a
   provider-side key ceiling for every enablement? **Recommend yes**, with the combined
   account budget shown and rules staying default until Jason enables it and installs
   the slot. Q199 provides readiness, not approval to spend now.
+  **Approved**, DECISIONS Q204. Jason, verbatim: “Q20b: yes, tunable in the settings.”
+  Huey’s reading: D11’s daily/monthly caps become user settings with the stated defaults.
+  The provider-side key limit remains required for every enablement and is the real ceiling.
+  Nothing spends until Jason enables paid decisions and installs the key.
 - **Q3 Reroute consent:** may setup authorize a named alternative model/provider list?
   **Recommend yes**, per role and privacy requirement. Empty list means hold/fail
   visibly instead of silently changing providers or model quality.
-- **Q4 System recovery priority:** approve the P1 narrowing of Q198 so heavy recovery
+  **Approved**, DECISIONS Q204. Jason, verbatim: “Q20c: yes”
+- **Q4 System recovery priority (pending, Jason restated 2026-10-21):** approve the
+  P1 narrowing of Q198 so heavy recovery
   takes priority over eligible normal work but still waits for authorization, kill-clear
   and hard capacity? **Recommend yes.** Keep health/reconciliation on reserved control
   capacity, without letting a recovery launch bypass those safeguards.
+  DECISIONS Q204 Q20d is conditional on Jason’s reading about returning to normal
+  operations, which differs from the design’s P1 recovery admission restriction. Mos
+  has restated the distinction to Jason. Q4 remains pending, with P1 unchanged.
 
 ## Verification and handoff